1
FORM NO. L-20016-U-0305
CLUTCH
END
BRAKE
END
INSTALLATION
PILOT MOUNT CLUTCH-BRAKE
1.
Secure a customer supplied sheave or sprocket to the
Clutch-Brake (See Figure 2).
2.
Insert the first Key (Item 30) into the shaft (See Figure 2).
3.
Slide the Clutch-Brake onto shaft and key; then, insert the
second Key (Item 30) (See Figure 2).
4.
Tighten Set Screws (Items 27 and 28) to the recommended
torque (See Table 1 and Figure 2).
NOTE
If a bushing for smaller diameter shafts is required, use a
bushing on both ends of the Clutch-Brake.
5.
Align air inlet ports to a six o’clock down position to allow
condensation to drain out of exhaust port.
6.
Fasten one of the ears of the Clutch-Brake to a fixed member
of the machine (See Figure 2).
NOTE
The Piston Air Chamber (Item 7) floats axially
approximately 1/16 inch [1.59 mm] during operation.
Make sure securing pin allows 1/16 inch to 1/8 inch [1.59
mm to 3.18 mm] movement of Piston Air Chamber.
INTRODUCTION
The Nexen Air Champ Clutch-Brake is an Air Champ Clutch and an
Air Champ Brake combined into a single unit.
Because heat from both the clutch and brake are absorbed within
the unit during engagement, caution must be used when a Clutch-
Brake is applied on high speed, high cyclic applications. If heat
generated from the clutching and braking of the Clutch-Brake
becomes great enough that the surface temperature of the unit
is 180
o
F [82.2° C] or higher, the unit may experience excessive
facing wear and a reduction in bearing and o-ring life. The Clutch-
Brake must be mounted on a bearing supported, through shaft.
Two separate air inlets provide independent clutching and braking
action.
FIGURE 1
AIR TO
CLUTCH
AIR TO
BRAKE
DESCRIPTION
FWCB
LWCB
MWCB
HWCB
35 In. Lbs.
80 In. Lbs.
80 In. Lbs.
23 Ft. Lbs.
Set Screw (Item 27)
[3.9 N•m]
[8.9 N•m]
[8.9 N•m]
[31.2 N•m]
20 In. Lbs.
20 In. Lbs.
80 In. Lbs.
— —
Set Screw (Item 28)
[2.2 N•m]
[2.2 N•m]
[8.9 N•m]
— —
.
TABLE 1
RECOMMENDED TIGHTENING TORQUES
FIGURE 2
Shaft
Key
(Item 30)
Set Screw
(Item 28)
Set Screw
(Item 27)
Key
(Item 30)
Clutch-Brake
Sheave
or
Sprocket
Read this manual carefully, making full use of its explanations and instructions. The “Know How” of safe, continuous,
trouble-free operation depends on the degree of your understanding of the system and your willingness to keep all
components in proper operating condition. Pay particular attention to all NOTES, CAUTIONS, and WARNINGS to avoid the
risk of personal injury or property damage. It is important to understand that these NOTES, CAUTIONS, and WARNINGS
are not exhaustive. Nexen cannot possibly know or evaluate all conceivable methods in which service may be performed,
or the possible hazardous consequences of each method. Accordingly, anyone who uses a procedure that is not
recommended by Nexen must first satisfy themselves that neither their safety or the safety of the product will be jeopardized
by the service method selected.
WARNING
This unit has rotating parts. A guard that will not restrict the flow of cooling air around the unit must be used if the unit is
installed where injury to an operator could occur, as stated in the Occupational Safety and Health Act (OSHA), Standard
(29 CFR 1910) Section 1910.219K.
®
DIST. AUTORIZADO
MEX (55) 53 63 23 31
QRO (442) 1 95 72 60
MTY (81) 83 54 10 18
[email protected]
